Originally posted by: jagec
Note that none of them are "great", and that if you can it's better to get a tape adapter or mod your own line-in plug. Failing those options, they're versatile and offer decent sound quality.
Originally posted by: TheTony
Obviously, if you can use a line-in, that will be the best option. However, I assume for whatever reason that is not a possibility. My suggestion is the iRiver AT100 (Amazon sale link here). It has adjustable frequency tuning, so you're not stuck to the 3-5 preset frequencies. It also has 3 programmable presets. Input via a standard mini-jack.